Propoxyphene/Norpropoxyphene, Screen and Confirmation, Urine
Use
Detect and confirm the presence of propoxyphene or norpropoxyphene
Special Instructions
This assay is specifically intended for pain management purposes. It is not suitable for workplace drug testing and does not comply with state regulatory programs governing workplace testing protocols. The test involves an initial immunoassay screening, with positive results undergoing confirmation by mass spectrometry for specificity.
Limitations
The Propoxyphene/Norpropoxyphene test is specific for the detection of propoxyphene and its metabolite, norpropoxyphene. However, it does not screen for other potentially related substances or opiates that the individual may consume. The immunoassay is susceptible to cross-reactivity with substances of similar structure, potentially resulting in false positives. Confirmation by mass spectrometry is crucial to differentiate true positive results. Turnaround time may be affected by the need for confirmatory testing, and shipping delays can also impact result timing.
Methodology
Immunoassay (Mass Spectrometry)
Biomarkers
LOINC Codes
- 19429-0
- 19429-0
- 16200-8
Result Turnaround Time
2-5 days
Related Documents
For more information, please review the documents below
Specimen
Urine
Volume
20 mL
Minimum Volume
Not provided
Container
Plastic urine container
Storage Instructions
Maintain specimen at room temperature. If arrival at lab will extend beyond seven days, refrigerate.